function(value, element, phone) {
var e164 = "^\\+?[1-9]\\d{1,14}$";
var re = new RegExp(e164);
+
+ let has_plus = value.charAt(0) === '+';
+ value = value.replace(/\D/g,'');
+ if ( has_plus ) value = '+' + value;
+ element.value = value;
+
return this.optional(element) || re.test(value);
},
jQuery.validator.messages.phone);